Keep your feet warm and toasty in the most bitter of cold with ThermaCELL Heated Insoles. Utilizing high tech wireless thermal technology, these advanced insoles keep your feet warm and comfortable for up to five hours per charge. Controlled by an easy to use remote control, the insoles offer three temperature settings: High (111°F), medium (100°F), and no heat. Use the no heat setting when active or indoors to conserve battery life. Powered by lightweight rechargeable lithium ion batteries embedded in the insoles and not mounted to the shoe, ankle, or waist, these insoles slip easily into your boots or shoes. Insoles come with a drawstring bag, global charger, and wireless remote control. Includes a lanyard for the remote control and operating instructions. Water resistant.